Effect of hand sanitizer on the performance of fingermark detection techniques

Hand sanitizers are effective microbial killing liquids, gels or foams that are used to disinfect and cleanse hands without the need for soap and water. Hand sanitizers have been a growing commodity ever since their introduction in 1966, with hand sanitizer sales peaking to over 15 million sales in a single week in 2009–(coinciding with the news of a H1N1 outbreak) [1]. These products were originally alcohol-based, with ethanol or isopropanol as the active ingredient. At concentrations between 60 to 95 percent [2], alcohols are effective against most bacteria and fungi, and many viruses, killing these organisms by denaturing their proteins, dissolving their lipids, and subsequently interfering with their metabolism and cell lysis [3].

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